Tag One Motorsport Radical SR3 XXR, front perspective view
The Car · 2026 Season

Radical SR3 XXR

The world's best-selling two-seater race car. Six units in the Tag One fleet, the largest Radical fleet in the country.

232
horsepower
RPE Gen 5, 1500 cc
620
kilograms
tubular steel chassis
350+
hp per tonne
official Radical figure
2:02
at Silverstone
manufacturer reference

Six cars

Six cars, six identities

One car. Six liveries. On the grid, none of our drivers will be mistaken for another.

Cedric Ohayon's number 44 Radical SR3 XXR, green livery
44
Cedric Ohayon
John Benoualid's number 93 Radical SR3 XXR, green and gold livery
93
John Benoualid
Denis Larue's number 23 Radical SR3 XXR, black and gold livery
23
Denis Larue
Alex Tagliani's number 8 Radical SR3 XXR, red and yellow livery
8
Alex Tagliani
Number 11 Radical SR3 XXR, shared car by Alexandre Moïse and Jean-Christophe Duchaine, blue livery
11
Alexandre Moïse · J.-C. Duchaine
Antoine Sénéchal's number 63 Radical SR3 XXR, black and gold livery
63
Antoine Sénéchal
Specifications

Technical data sheet

Engine

RPE Gen 5, 4-cylinder, 16-valve

1500 cc and 232 hp, Radical Cup specification

Drive-by-wire electronic throttle

Life Racing engine management and data acquisition

E85 biofuel compatible

Transmission

6-speed sequential gearbox

Paddle shifters with auto-blipper

Quaife limited-slip differential

Body and chassis

Tubular chassis, FIA-certified safety cell

Composite bodywork, front splitter and rear diffuser

Carbon fiber biplane wing

LED lights and central FIA rain light

Cockpit

Driver and passenger seats, 6-point harness

AiM Formula steering wheel, 4.3" TFT display

Steering wheel controls and pit lane limiter

Predictive lap timing and video acquisition

Brakes

Radical 4-piston calipers

280 mm floating discs, 48 vanes

Optional AP Racing upgrade available

Suspension

Fully adjustable Nik-Link system

Double wishbones and adjustable pushrods

Interchangeable anti-roll bars

Adjustable Intrax dampers

Wheels and tires

Braid center-lock aluminum wheels

8 x 15 in front, 10.5 x 16 in rear

Michelin tires, Emzone Radical Cup Canada series

Dimensions

Length 4,077 mm, width 1,799 mm, height 1,093 mm

Weight 620 kg

77-litre FIA-certified fuel cell

XXR Generation

What the XXR changes

E85 biofuel

The first Radical designed from the ground up to run on biofuel.

Central fin

Biplane rear wing and LMP-inspired tail fin.

Pit lane limiter

Standard on the XXR, where it used to be an add-on.

Gear sensors

Steering wheel-mounted gear position display.

Gallery

From every angle

Radical SR3 XXR — front perspective viewRadical SR3 XXR — isometric rear viewRadical SR3 XXR — top-down viewRadical SR3 XXR — close-up of the numberRadical SR3 XXR, low rear three-quarter viewRadical SR3 XXR, low-angle front driver-side viewRadical SR3 XXR, high-angle front driver-side view

On track

The machine at work

Dual exhaust of the Radical SR3 XXR, gold and black bodyworkTag One mechanic working on the number 11 Radical in the paddockNumber 8 and 11 Radical SR3 XXRs under the Tag One Motorsport tentTag One's number 11 Radical SR3 XXR at Castrol Corner, CTMPDenis Larue's number 23 Radical SR3 XXR on track at CTMPAlex Tagliani's number 8 Radical SR3 XXR at Castrol Corner, CTMPJohn Benoualid's number 93 Radical SR3 XXR on track at CTMPAntoine Sénéchal's number 63 Radical SR3 XXR on track at CTMP

Photos: Kptur, 2026 CTMP weekend

See it in person

Six cars waiting for you on the track

Experience Tag One hospitalityView the 2026 calendar